In most temperate, humid regions, the period of greatest potential for nitrate leaching is during the summer when nitrogen fertilizer is applied to crops
Indicate whether the statement is true or false
FALSE
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Rainwater harvesting and graywater are _____.
a. alternative sources of water b. unsustainable c. unsafe sources of water d. pristine sources of water
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Which is a primary safety requirement when replacing an older furnace?
A) Properly grounding the furnace cabinet B) Removing the jumper C) Relocating the thermostat D) Properly discarding used materials
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A logic gate draws 10mA when its output is HIGH and 20mA when its output is LOW. When operating from a 12V supply with a 10% duty cycle the average power dissipation will be ________
A) 180mW B) 324mW C) 360mW D) 228mW
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The Boolean expression for a three-input AND gate is X = ABC
Indicate whether the statement is true or false
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